Joystick thumb cushion

A cushioned attachment for a user-manipulatable actuator of a controller device, the actuator having an actuator top portion supported on a movable shaft and having top and side surfaces, comprising:

• an elastomeric body including a hollow interior defined by a side surface connecting a closed top portion and a partly open bottom portion, the partly open bottom portion extending radially inward from the side surface to define a bottom portion opening;
• a divider positioned in the interior of the body between the top and bottom portions and extending radially inward from the side surface to form first and second interior cavities interconnected in fluid communication by a divider opening, the first interior cavity having a depth defined by a distance between the bottom portion and the divider, and the second interior cavity having a depth defined by a distance between the top portion and the divider;
• and
• the bottom portion opening and the depth of the first interior cavity being sized to seat the actuator top portion in the first interior cavity upon placement of the cushioned attachment over the top and side surfaces of the actuator top portion, and the divider opening and the depth of the second interior cavity being sized to provide for the user a sealed fluid cushion when the actuator top portion is seated.